Tatiana Alabsi and helpers escort children through San Francisco's Tenderloin neighborhood in "Safe Passage" vests.

Tatiana Alabsi and other helpers wear "Safe Passage" vests while escorting children through San Francisco's Tenderloin neighborhood, notorious for drug use and congested sidewalks. They navigate broken bottles and sleeping bags, politely alerting people on the streets. The helpers' cheerful voices provide a soothing contrast to the neighborhood's misery.